You will need to place something of a certain weight on the “Place here” platform in the lego section.

You need to find all pieces of the lego airplane, including the small metal balls that came with one of the lego pieces.

Lego pieces will be found in the desk, all three locked drawers, and in a green book on the book shelf that has been hollowed out. Assemble the lego pieces and place the small metal balls in a bag inside the body of the lego plane. Place the completed lego plane on the “place here” platform in the lego section and the box will open up containing a slip of paper that says “Moonlight State Beach”. Moonlight State Beach is the answer.